Abstract: A grass mower comprising a power generator, a blade reel, a drive drum, and a power split device. The split power device can include a single power input shaft, a reel output shaft, a drum output shaft, and at least one continuously variable transmission hub operably connecting the reel output shaft and/or the drum output shaft to the power input shaft such that torque and rotational speed delivered by the power input shaft is transferrable to the reel and/or drum output shafts at any infinitely variable ratio. The power split device structured and operable to transfer the torque and rotational speed delivered by the power input shaft to both the reel and drum output shafts such that a rotational speed of the blade reel and a rotational speed of the drive drum are both generated from the power delivered by the power input shaft and are both independently controlled.

Abstract: A method of collecting, analyzing, calculating and comparing the production of electricity by a renewable energy device; said renewable energy device is capable of having the amount the production of electricity communicated with a said online gathering system; and an independent device, or another renewable energy device or historical meteorological database for verifying of said production of electricity from said renewable energy device in order to calculate the said usage fee